A new model for sizing thermosiphon solar heating systems
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/5673 |
Resumo: | The purpose of this work is to present a simple methodology which enables to size a thermosyphon system without always having to resort to a computational simulation. As a result of many system simulations using the TRNSYS software, whereby several project and equipment parameters were varied, a group of expressions were obtained which allow the determination of the system thermal daily efficiency (monthly average). The developed correlation includes geometric and thermal aspects related to the collector, the storage tank and the connecting pipes, as well as operational data such as thermal load, solar radiation and room temperature. This model is able to optimize several variables that comprise thermosyphon solar water-heating systems for the requirements of particular applications. The resulting correlation shows that the efficiency is a linear function of meteorological conditions, collector quality and parameters related to storage tank volume, volume load (consumption profile) and collector area. The correlation is very useful since it is a simple, fast alternative for the calculation of system efficiency without depending on experimental determination or numerical simulation results. The determination and sizing of the collector area and the volume storage tank that satisfy the required thermal load can be appropriately performed in a simple and fast way by using the proposed correlation. |
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A new model for sizing thermosiphon solar heating systemsUn nuevo enfoque para el dimensionamiento de calentadores solares que funcionan con termosifónUma nova abordagem para o dimensionamento de aquecedores solares operando por termossifãoAquecimento solar de águaCirculação NaturalModelo matemáticoTRNSYS.Calentamiento solar de aguaCirculación naturalModelo matemáticoTRNSYS.Solar water heatingNatural circulationMathematical modelTRNSYS.The purpose of this work is to present a simple methodology which enables to size a thermosyphon system without always having to resort to a computational simulation. As a result of many system simulations using the TRNSYS software, whereby several project and equipment parameters were varied, a group of expressions were obtained which allow the determination of the system thermal daily efficiency (monthly average). The developed correlation includes geometric and thermal aspects related to the collector, the storage tank and the connecting pipes, as well as operational data such as thermal load, solar radiation and room temperature. This model is able to optimize several variables that comprise thermosyphon solar water-heating systems for the requirements of particular applications. The resulting correlation shows that the efficiency is a linear function of meteorological conditions, collector quality and parameters related to storage tank volume, volume load (consumption profile) and collector area. The correlation is very useful since it is a simple, fast alternative for the calculation of system efficiency without depending on experimental determination or numerical simulation results. The determination and sizing of the collector area and the volume storage tank that satisfy the required thermal load can be appropriately performed in a simple and fast way by using the proposed correlation.El objetivo de este trabajo es presentar una metodología simple para que sea posible diseñar un sistema que funcione en un termosifón, sin recurrir siempre a una simulación por computadora. Como resultado de muchas simulaciones de sistemas que utilizan el programa TRNSYS, donde se variaron diferentes parámetros operacionales y de diseño del sistema, se obtuvo un conjunto de expresiones que permiten la determinación de la eficiencia térmica diaria (promedio mensual) del sistema. La correlación desarrollada contempla tanto los aspectos geométricos y térmicos relacionados con el colector, el tanque de almacenamiento y las tuberías de conexión, así como los aspectos operativos (carga térmica, radiación solar, temperatura ambiente). Este modelo puede optimizar las variables del sistema de calentamiento solar de agua mediante termosifón para los requisitos de una aplicación específica. La correlación obtenida muestra que la eficiencia es una función lineal de las condiciones climáticas, la calidad del colector y los parámetros que relacionan el volumen del tanque de almacenamiento, el volumen de carga (perfil de consumo) y el área del colector. La correlación es muy útil, ya que es una alternativa simple y rápida para calcular la eficiencia del sistema, sin depender de la determinación experimental o los resultados de la simulación numérica. El dimensionamiento, es decir, la determinación del área del colector y el volumen del tanque de almacenamiento que satisfacen adecuadamente la carga térmica requerida, se puede llevar a cabo de manera simple y rápida, utilizando esta correlación.O objetivo deste trabalho é apresentar uma metodologia simples para que seja possível dimensionar um sistema operando em termossifão, sem recorrer sempre a uma simulação computacional. Como resultado de muitas simulações de sistemas utilizando o programa TRNSYS, variando-se diversos parâmetros do projeto e dados operacionais do sistema, obteve-se um conjunto de expressões que permitem a determinação da eficiência térmica diária (média mensal) do sistema. A correlação desenvolvida contempla os aspectos geométricos e térmicos relacionados ao coletor, ao tanque de armazenamento e às tubulações de conexão, bem como aspectos operacionais tais como carga térmica, radiação solar e temperatura ambiente. Este modelo é capaz de otimizar as variáveis do sistema de aquecimento solar de água por termossifão para os requisitos de uma aplicação específica. A correlação obtida mostra que a eficiência é uma função linear das condições meteorológicas, da qualidade do coletor e dos parâmetros que relacionam o volume do tanque de armazenamento, o volume de carga (perfil de consumo) e a área do coletor. A correlação é muito útil, uma vez que se trata de uma alternativa simples e rápida para o cálculo da eficiência do sistema, sem depender de determinação experimental ou resultados de simulação numérica. O dimensionamento, isto é, a determinação da área do coletor e do volume do tanque de armazenamento que satisfazem de maneira adequada a carga térmica necessária, pode ser realizado de maneira simples e rápida usando essa correlação.Research, Society and Development2020-07-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/567310.33448/rsd-v9i8.5673Research, Society and Development; Vol. 9 No. 8; e382985673Research, Society and Development; Vol. 9 Núm. 8; e382985673Research, Society and Development; v. 9 n. 8; e3829856732525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/5673/4969Copyright (c) 2020 Antonio Marcos de Oliveira Siqueira, Alexandre Gurgel, Zeji Ge, Fernando Ariel Colque, Gabriel Siqueira Silvainfo:eu-repo/semantics/openAccessSiqueira, Antônio Marcos de OliveiraGurgel, AlexandreGe, ZejiColque, Fernando ArielSilva, Gabriel Siqueira2020-08-20T18:00:17Zoai:ojs.pkp.sfu.ca:article/5673Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:29:07.222263Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
A new model for sizing thermosiphon solar heating systems Un nuevo enfoque para el dimensionamiento de calentadores solares que funcionan con termosifón Uma nova abordagem para o dimensionamento de aquecedores solares operando por termossifão |
title |
A new model for sizing thermosiphon solar heating systems |
spellingShingle |
A new model for sizing thermosiphon solar heating systems Siqueira, Antônio Marcos de Oliveira Aquecimento solar de água Circulação Natural Modelo matemático TRNSYS. Calentamiento solar de agua Circulación natural Modelo matemático TRNSYS. Solar water heating Natural circulation Mathematical model TRNSYS. |
title_short |
A new model for sizing thermosiphon solar heating systems |
title_full |
A new model for sizing thermosiphon solar heating systems |
title_fullStr |
A new model for sizing thermosiphon solar heating systems |
title_full_unstemmed |
A new model for sizing thermosiphon solar heating systems |
title_sort |
A new model for sizing thermosiphon solar heating systems |
author |
Siqueira, Antônio Marcos de Oliveira |
author_facet |
Siqueira, Antônio Marcos de Oliveira Gurgel, Alexandre Ge, Zeji Colque, Fernando Ariel Silva, Gabriel Siqueira |
author_role |
author |
author2 |
Gurgel, Alexandre Ge, Zeji Colque, Fernando Ariel Silva, Gabriel Siqueira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Siqueira, Antônio Marcos de Oliveira Gurgel, Alexandre Ge, Zeji Colque, Fernando Ariel Silva, Gabriel Siqueira |
dc.subject.por.fl_str_mv |
Aquecimento solar de água Circulação Natural Modelo matemático TRNSYS. Calentamiento solar de agua Circulación natural Modelo matemático TRNSYS. Solar water heating Natural circulation Mathematical model TRNSYS. |
topic |
Aquecimento solar de água Circulação Natural Modelo matemático TRNSYS. Calentamiento solar de agua Circulación natural Modelo matemático TRNSYS. Solar water heating Natural circulation Mathematical model TRNSYS. |
description |
The purpose of this work is to present a simple methodology which enables to size a thermosyphon system without always having to resort to a computational simulation. As a result of many system simulations using the TRNSYS software, whereby several project and equipment parameters were varied, a group of expressions were obtained which allow the determination of the system thermal daily efficiency (monthly average). The developed correlation includes geometric and thermal aspects related to the collector, the storage tank and the connecting pipes, as well as operational data such as thermal load, solar radiation and room temperature. This model is able to optimize several variables that comprise thermosyphon solar water-heating systems for the requirements of particular applications. The resulting correlation shows that the efficiency is a linear function of meteorological conditions, collector quality and parameters related to storage tank volume, volume load (consumption profile) and collector area. The correlation is very useful since it is a simple, fast alternative for the calculation of system efficiency without depending on experimental determination or numerical simulation results. The determination and sizing of the collector area and the volume storage tank that satisfy the required thermal load can be appropriately performed in a simple and fast way by using the proposed correlation. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-07-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/5673 10.33448/rsd-v9i8.5673 |
url |
https://rsdjournal.org/index.php/rsd/article/view/5673 |
identifier_str_mv |
10.33448/rsd-v9i8.5673 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/5673/4969 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 9 No. 8; e382985673 Research, Society and Development; Vol. 9 Núm. 8; e382985673 Research, Society and Development; v. 9 n. 8; e382985673 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
_version_ |
1797052653128122368 |